Powertrain
generic / SAE
P2C89
Hybrid/EV Battery System Precharge Current Too High
During the HV battery precharge sequence, the inrush current exceeds the calibrated maximum. Indicates short on the DC-link side or insufficient precharge resistance.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberC / 89
Possible causes
- Short on DC-link (capacitor or load) high
- Precharge resistor shorted medium
- Pack cell imbalance approaching service threshold low
Symptoms
- EV/hybrid system warning light on
- Reduced power output or limp mode
- Charging may fail or be slowed
- Reduced electric range
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 400–2500 €
- Estimated time: 2–8 h
- Component: hybrid precharge resistor
- Component: dc link capacitor
- Component: bms
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012